High Accuracy CNC Machined Relay Core for Long-Term Stable Performance

Precision CNC Turning & Micro-Tolerance Machining

Engineered for Tier-1 automotive applications, our relay manufacturing process utilizes multi-axis CNC turning and precision grinding. Specifications include:

• Dimensional Versatility: Standard diameters from Φ8mm to Φ25mm and heights from 10mm to 40mm, all 100% customizable.

• Geometric Precision: Cylindrical profiles engineered with internal threads or a stepped interface to integrate seamlessly into complex relay housings.

• Internal Bore Engineering: Precision-machined bores designed for secure plug pin insertion or rock-solid threaded connections.

Advanced Electrochemical Surface Optimization

To guarantee a defect-free operational lifespan, every relay core undergoes automated electrochemical polishing followed by high-adhesion electroplating. This process eliminates microscopic burrs, delivers a mirror-smooth finish, and provides an impermeable anti-oxidation barrier. Our finish isolates the core component from moisture, salt spray, and corrosive automotive fluids.

Strict TS16949 Standards & Customization Services

As an established IATF-compliant automotive CNC components manufacturer, Caiyi offers scalable contract manufacturing services for global OEM/ODM buyers:

• Custom Threading & Profiling: Tailored internal and external threads according to your precise engineering CAD blueprints.

• Bulk PPAP Documentation: Full traceability, material certifications, and micro-measurement reports provided for automotive audit compliance.

• Flexible Production Scalability: Optimized manufacturing pipelines built to handle both low-volume prototyping and high-capacity production runs.